[PATCH] D49514: [compiler-rt] [builtins] Add logb/logbf/logbl methods to compiler-rt to avoid libm dependencies when possible.

[Steve Canon via Phabricator via llvm-commits]

scanon added a comment.

I suspect that we'd rather use `ilogb` in the long term, but as a like-for-like replacement this looks OK.


Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D49514